Table 4.
Antibacterial activity of several known standard antibiotics against bacterial strains of interest.
| Reference Strain | Antibiotic | Zone of Inhibition (mm) |
|---|---|---|
|
Staphylococcus aureus ATCC 25923 |
Gentamicin 10 μg/disc | 19–27 |
| Vancomycin 30 μg/disc | 17–21 | |
|
Streptococcus spp. Beta-haemolitic group |
Penicillin 10 μg/disc | ≥24 |
| Vancomycin 30 μg/disc | ≥17 | |
|
Enterococcus faecalis ATCC 29212 |
Gentamicin 30 μg/disc | 12–18 |
| Vancomycin 5 μg/disc | 10–16 | |
|
Pseudomonas aeruginosa ATCC 27853 |
Ciprofloxacin 5 μg/disc | 25–33 |
| Gentamicin 10 μg/disc | 17–23 | |
|
Escherichia coli ATCC 25922 |
Ampicillin 10 μg/disc | 15–22 |
| Gentamicin 10 μg/disc | 19–26 |